diebold



(No Model.) 2 SheetsSheet 2.

J. W. DIEBOLD. METHOD OF AND APPARATUS FOR PRODUCING RAILWAY BALLASTFROM PULN GB SLAG.

Patented Dec. 22, 1891.

UNITED TATES ATENT Erica.

JOHN W. DIEBOLD, OF IIFSBURG, PENNSYLVANIA, ASSIGNOR TO CHARLES DIEBOLD,OF SAME PLACE.

METHOD OF AND APPARATUS FOR PRODUClNG RAILWAY-BALLAST FROM FURNACE-SLAG.

SPECIFICATION forming part of Letters Patent N 0. 465,572, datedDecember 22, 1891.

Application filed April 20, 1891. fierial No. 389,716- (No model.)

To aZZ whom it may concern;

Be it known that I, JOHN IV. DIEBOLD, a citizen of the United States,residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inMethods of and Apparatus for Producing Railway-Ballast fromFurnace-Slag; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which-it pertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specification, in which Figure 1 indicates a side elevation of myimproved device for preparing blast-furnace slag for utilization asrailway-ballast. Fig. 2 is a partial end elevation of same. Fig. 3 is anenlarged plan View of roller journaled in large link of chain. Fig. i isa side"vie\'v of same. Fig. 5 is a detail perspective view of one of themolds. Fig. G,Sheet1, is a side sectional elevation of breaking-plateand incline.

My invention relates to improvements in the method of and apparatus forthe production of railway -ballast from blast -furnace slag, the objectof my invention being to prepare from said slag a serviceable anddurable railway-ballast at a cost that will warrant the use of the samein preference to other mate rial that may be used for such purpose, andthis I have obtained by the method and apparatus used therein, whichmethod, broadly stated, consists in filling slowly-moving molds withblast-furnace slag from a modoc, or in any suitable manner, and afterpermitting said slag to cool somewhat in said molds to discharge thesame upon a metal plate or other hard substance and reduce the sametofragments, and then convey said broken slag to an annealing-oven.

In the drawings I show an apparatus adapted to the application of saidmethod. Said apparatus consists of a series of molds suitably securedupon a pair of endless chains operating over sprocket-wheels placed asuitable distance apart, according to the width of said molds. The upperpair of said Wheels is elevated a very considerable distance above theplane of the lower pair, whereby the chains operating over the same aremaintained at an angle of almost forty-five degrees and elevating theforward end, where the slag is discharged from said mold, a distancesufficieut to break said slag into fragments upon a metal plate suitablylocated at such point.

I will now specifically describe my invention, reference being had tothe accompanying drawings, forming part hereof, in which like lettersindicate like parts wherever they occur.

Referring to said drawings, a a .are uprights at any required distanceapart, according to the width of the apparatus. 1') b are similaruprights at the opposite end of the apparatus.

0 c are endless chains, one at either side said apparatus and adapted tooperate over sprocket-wheels (Z cl cl (1, which are suitably secured,respectively, on the shaftsf and respectively. Said shafts f g arerespectively suitably journaled in the uprights a a b b, respectively,the shaft 9 being considerably above the plane of said shaft f, where-'7 5 by said chains are maintained, as shown in Fig. 1, preferably at anangle instead of horizontal. Atiutervals in said chains, depending uponthe length of the molds, are placed links h h h, 820., considerablylarger than the remaining links of said chains. Between said links 7L hand suitably journaled therein are a corresponding number of rollers 'it t, &c., which are adapted to pass between the sections of saidsprocket-wheels d d and travel along the eyebeams 71? 7c, the ends,respectively, of which are suitably secured upon the uprights at eitherend, respectively, of said device, as shown in Fig. 1.

Z Z Z, 650., are series of transverse bars connecting said chains, beingpreferably formed of angle-iron suitably secured upon the upper side ofsaid links h h h, and having near the ends thereof lugs m m, the.

n n n, &c., are a number of molds adapted to contain molten slag, theforward end of one and the rear end of the next succeeding one of saidseries of molds being pivotally connected to said bars Z Z Z by the lugs0 o 0 and the armsp p p, &c., upon the forward mo and rear ends,respectively, of said molds, the lugs 0 0 being formed or secured uponthe lower forward end of said molds near the sides thereof and thearms 1) 1) being pivotally secured in the bearings q g at either sidethe rear of the same, as shown in Fig. 1, said arms being of sufficientlength to maintain said molds in a horizontal position, as shown in Fig.1, notwithstanding the chains which carry said molds are inclined at anangle. The rear of said molds is provided with slots or gates 07/72 toenable the molten slag to pour from the forward to the next succeedingmold, thereby avoiding the danger of overflowing either said molds.Suitably secured upon the sides of said molds are rollers 'r T, whichare adapted to travelon the beams s s in the return passage.

25 is a metal plate, preferably the bottom of a bin, placed beneath theelevated end of said device in such position that the solidified slagwhen, discharged from said molds drops thereon and is reduced tofragments, and is permitted to slide down the incline u, connected withsaid plate, into an annealing-oven (not shown) at or near the bottom ofsaid incline.

The operation of my device is as follows: Blast-furnace slag, beingcarried by a modoc or otherwise suitably conveyed from a blast furnace,(not shown,) is permitted to flow into said molds at the lower end ofsaid device.

Power being applied to said device, said molds in a liquid condition toslowly-moving molds, which permitit to cool and solidify, anddischarging it from said molds in a solid condition upon a metal platebeneath, whereby it is reduced to fragments and subsequently annealingsuch fragments.

2. The combination of a pair of endless chains connected by a number oftransverse bars provided with lugs, a pair of sprocket- Wheels suitablysecured upon shafts journaled in the frame of said apparatus at eitherend thereof, one pair of said wheels being so elevated above the planeof the other pair as to incline said chains at an angle, and a series ofmolds adapted to be carried by said chains, the forward end of saidmolds being pivotally connected to the lugs on one of said transversebars by a short arm, the rear ends being similarly connected to the nextsucceeding bar by an arm of greater length, whereby said molds areenabled to maintain a horizontal position, substantially as and for thepurpose set forth.

3. In a ballast-producing device, substantially as described, thecombination of a pair of endless chains adapted to operate oversprocket-wheels at either end of said device, the rear pair of saidwheels being elevated, whereby the chains operating over the same areinclined at an angle, said chains being connected by transverse barsprovided with lugs and having suitably journaled at intervals in thelinks of the same a number of rollers, and a series of molds pivotallyconnected to said bars and adapted to be carried by said chains, and ametal plate located beneath the elevated end of said device,substantially as and for the purpose herein set forth.

In testimony that I claim the foregoing I hereunto affix my signaturethis 9th day of April, A. D. 1891.

- JOHN W'. DIEBOLD. [L. s]

In presence of J NO. H. Ronny, W. H. LEMON.

